ALGAE: In White or Clear Pots

Ailments Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin over 8 years ago.

Article Blog   Article Index
In areas of strong light algae grows inside plastic pots which are translucent; dark pots exclude light. A72-490
Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Algae

Algae Comments
ALGAE: Control Use Physan 20, at the rate of 1/2 tpg. A78-495 0
ALGAE: Control in Cattleya House Physan 20 may be too expensive; Phygon is cheaper for use on evaporative cooling pads. A74-969 0
ALGAE: Control in Growing Trays After watering plants, rinse the tray grave1 if possible and allow grave 1 to dry fully to kill algae; repeat periodically; or, spray grave 1 with Simazine 80W, 1 tpq. A70-535 0
ALGAE: Control on Surface of Potting Medium Use 1.5 ttpg. of Maneb (Manzate) as heavy spray. A73-409 0
ALGAE: Controls When it occurs in a humidity tray holding water and pebbles, pour in a little chlorine (household bleach), let it remain for a while then decant and ventilate; or, use neutral copper. A86-929 0
ALGAE: In Osmunda Under Lights Usually caused by heavy organic fertilizers plus high humidity; harmful only if it excludes air from roots; use Physan 20. A79-910 0
ALGAE: In Pots Use of Bioquin satisfactory,address given; Manzate (Maneb) fungicide controls algae; use 1 ounce to 4 gals. water; various basic copper fungicides also control algae. A73-888; no safe algecide known. A77-1101 0
ALGAE: In Rainbarrel To destroy it add some sodium hypochlorite, then aerate to free the chlorine; exclude light by covering barrel with black polyethylene. A67-579 0
ALGAE: Interior of Greenhouse Wash off with soap and water, spray every few weeks with household bleach which does not harm plant materials but can harm the skin, so wash it off, if necessary. OR82-102 0
ALGAE: Its Effect on Plants Algae can be harmful to plants grown in clay or crockery pots by covering the roots, so wash it off the pots and water less. A81-688 0
ALGAE: On Plant Leaves Caused probably by too little light; low intensity of fertilizer on leaves promotes growth; it can cut down on photosynthesis. F68-187 0
ALGAE: On Potting Medium Surface Medium is 1 sand, 1 fir bark, 1 milled sphagnum; water well, then let the surface dry; syringe only in early morning. A77-527 0
ALGAE: On Stones in Tray Under Plants Humidity trays should be flushed with Clorox 20% solution and allowed to stand 15 minutes, then flushed again with water; replace the plants. A82-588 0
ALGAE: To Prevent Growth in Tanks Drain the tank; add Clorox 1 ttpg. and let stand one and a half hours; drain, replace with clear water. A65-53 0
ALGICIDES: Condensation Drip From Air Cap Insulation Promotes Algae To render drip harmless spray with Physan 20, 1/2 tpg. A79-124 0

New Topics

  1. Rosemary Chenery asked question Lost tag in category General Discussion
  2. Glenda Ratliff asked question Issue with Blc. Ben O'Neil "Jubilee in category General Discussion
  3. Debbie Chase asked question Help identifying this orchid. in category General Discussion
  4. Harry Koplin asked question Snow birds dilemma. in category General Discussion
  5. didier fouquet asked question Looking to import Vanilla Pompona schiede in category General Discussion
Ask a Question

Start a Topic

New Comments

  1. James Lunsford commented on member plant Lc. Sagarik Wax 'African Beauty AMO/AOS x Blc. Cherry Suisse'Kauai' HCC/AOS var. Cattlyea 'Hybrid ' by James Lunsford
  2. John Varigos commented on orchid Bulb. schwarzii
  3. Linda Hartman commented on topic "Issue with Blc. Ben O'Neil "Jubilee" by Glenda Ratliff
  4. Henry Shaw commented on member plant Ons. Catatante 'Los Roble' by Henry Shaw
  5. Mary Lane commented on member plant Den. Tianmu Canary by Terre Moore
  6. Pamela Stegmaier commented on member plant Rlc. Esther Costa var. Orange Fantasy by Mary Lane
  7. Mary Lane commented on member plant Rth. Linda Vee var. Kira - Cluster Orange by Mary Lane
  8. William Gorski commented on topic "Looking to purchase" by Judy Rutz
  9. Robert Rand commented on member plant Cattlianthe Auri Guis by Robert Rand
  10. Julie Ellner commented on member plant Phal. amabilis var. formosanum by Vickie Seibert
  11. Julie Ellner commented on member plant Rlc. Green Dragoon 'Mendenhall' by Jeanne Uzar Hudson
  12. Barry J Silver commented on orchid Lyon. SunCoast Pink Passion
  13. Carol Holdren commented on topic "Phalaenopsis William Kistler?" by Nicholas Filannino
  14. Carol Holdren commented on orchid Colm. Eric Gabriel Heines
  15. Carol Holdren commented on topic "Cattleya little susie" by Juliann Eckhard
  16. Carol Holdren commented on member plant Bc. Morning Glory by Chris Siolo
  17. R .Benson commented on member plant Kir. New Hybrid (Fred Clarke) SVO9831 by R .Benson
  18. Carol Holdren commented on topic "Blooming Stenglottis Venus “jamboree “" by John Urey
  19. Jeanne Uzar Hudson commented on member plant Lc. Canhamiana var. coerulea 'Cobalt' by Jeanne Uzar Hudson
  20. Jeanne Uzar Hudson commented on member plant Sns. gemmata by Jeanne Uzar Hudson